830
AXUS43 KMQT 170801
MISMQT

OPEN LAKE FORECAST FOR LAKE SUPERIOR FOR NOAA WEATHER RADIO
NATIONAL WEATHER SERVICE MARQUETTE MI
401 AM EDT Fri Oct 17 2025

LSZ162-172000-
Lake Superior west of a line from Saxon Harbor WI to Grand
Portage MN beyond 5NM-
401 AM EDT Fri Oct 17 2025 /301 AM CDT Fri Oct 17 2025/

.EARLY THIS MORNING...South winds 10 to 20 knots. A slight chance
of showers. Waves calm to 2 feet.
.TODAY...South winds 10 to 20 knots becoming southwest 15 to
25 knots late. A chance of showers. Waves building to 1 to
3 feet.
.TONIGHT...Southwest winds 15 to 25 knots diminishing to 10 to
20 knots late. Waves building to 2 to 4 feet, then subsiding to
1 to 3 feet.
.SATURDAY...West winds 10 to 20 knots. Waves subsiding to calm to
2 feet.
.SATURDAY NIGHT...Northwest winds 10 to 20 knots increasing to
15 to 25 knots after midnight. A slight chance of showers. Waves
building to 1 to 3 feet.
$$

LSZ263-172000-
Lake Superior from Saxon Harbor WI to Upper Entrance to Portage
Canal MI 5NM off shore to the US/Canadian border including Isle
Royale National Park-
401 AM EDT Fri Oct 17 2025

.EARLY THIS MORNING...South winds 10 to 20 knots. A chance of
showers. Waves 1 to 3 feet.
.TODAY...South winds 10 to 20 knots veering southwest late. A
chance of showers. Waves 1 to 3 feet.
.TONIGHT...Southwest winds 15 to 25 knots diminishing to 10 to
20 knots late. A slight chance of showers through midnight. Waves
building to 3 to 5 feet occasionally to 7 feet, then subsiding to
2 to 4 feet.
.SATURDAY...West winds 10 to 20 knots. Waves subsiding to 1 to
3 feet.
.SATURDAY NIGHT...Northwest winds 10 to 20 knots increasing to
15 to 25 knots after midnight. A slight chance of showers. Waves
subsiding to calm to 2 feet, then building to 3 to 5 feet
occasionally to 7 feet.
$$

LSZ264-172000-
Lake Superior from Upper Entrance to Portage Canal to Manitou
Island MI 5NM off shore to the US/Canadian Border-
401 AM EDT Fri Oct 17 2025

.EARLY THIS MORNING...South winds 10 to 20 knots. A chance of
showers. Waves 3 to 5 feet occasionally to 7 feet.
.TODAY...South winds 10 to 20 knots. A chance of showers. Waves
subsiding to 2 to 4 feet.
.TONIGHT...Southwest winds 15 to 25 knots diminishing to 10 to
20 knots late. A chance of showers through midnight. Waves
building to 3 to 5 feet occasionally to 7 feet, then subsiding to
2 to 4 feet.
.SATURDAY...West winds 10 to 20 knots. Waves subsiding to 1 to
3 feet.
.SATURDAY NIGHT...Northwest winds 10 to 20 knots becoming north
15 to 25 knots after midnight. A slight chance of showers. Waves
subsiding to calm to 2 feet, then building to 3 to 5 feet
occasionally to 7 feet.
$$

LSZ265-172000-
Lake Superior West of Line from Manitou Island to Marquette MI
Beyond 5NM from shore-
401 AM EDT Fri Oct 17 2025

.EARLY THIS MORNING...South winds 10 to 20 knots. A chance of
showers. Waves 1 to 3 feet.
.TODAY...South winds 10 to 20 knots increasing to 15 to 25 knots
in the afternoon. A chance of showers. Waves building to 2 to
4 feet.
.TONIGHT...South winds 15 to 25 knots becoming southwest 10 to
20 knots after midnight. A chance of showers and a slight chance
of thunderstorms through midnight. Waves subsiding to calm to
2 feet.
.SATURDAY...West winds 10 to 20 knots veering northwest late.
Waves calm to 2 feet.
.SATURDAY NIGHT...Northwest winds 10 to 20 knots increasing to
15 to 25 knots after midnight. A chance of showers. Waves
building to 1 to 3 feet.
$$

LSZ266-172000-
Lake Superior East of a line from Manitou Island to Marquette MI
and West of a line from Grand Marais MI to the US/Canadian Border
Beyond 5NM from shore-
401 AM EDT Fri Oct 17 2025

.EARLY THIS MORNING...South winds 15 to 25 knots. Showers likely.
Waves 3 to 6 feet occasionally to 8 feet.
.TODAY...South winds 20 to 30 knots. A chance of showers. Waves
3 to 6 feet occasionally to 8 feet.
.TONIGHT...South winds 20 to 30 knots becoming southwest 15 to
25 knots after midnight, then diminishing to 10 to 20 knots late.
A chance of showers and a slight chance of thunderstorms. Waves
building to 4 to 7 feet occasionally to 9 feet, then subsiding to
2 to 4 feet.
.SATURDAY...Southwest winds 10 to 20 knots veering west in the
afternoon, then veering north late. A slight chance of showers.
Waves subsiding to 1 to 3 feet.
.SATURDAY NIGHT...North winds 10 to 20 knots increasing to 15 to
25 knots after midnight. A chance of showers. Waves subsiding to
calm to 2 feet, then building to 2 to 4 feet.
$$

LSZ267-172000-
Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off
shore to the US/Canadian border-
401 AM EDT Fri Oct 17 2025

.EARLY THIS MORNING...South winds 15 to 25 knots. Showers. Waves
3 to 5 feet occasionally to 7 feet.
.TODAY...South winds 15 to 25 knots increasing to 20 to 30 knots
in the afternoon. Showers likely through early afternoon. A
slight chance of showers by mid afternoon. Waves subsiding to
2 to 4 feet, then building to 3 to 5 feet occasionally to 7 feet.
.TONIGHT...South winds 20 to 30 knots becoming southwest 15 to
25 knots late. Showers likely through midnight. A slight chance
of thunderstorms. A slight chance of showers after midnight.
Waves building to 3 to 6 feet occasionally to 8 feet, then
subsiding to 1 to 3 feet.
.SATURDAY...Southwest winds 10 to 20 knots veering west late. A
chance of showers. Waves subsiding to calm to 2 feet.
.SATURDAY NIGHT...East winds 10 to 20 knots backing north after
midnight. A chance of showers through midnight, then showers
likely and a slight chance of thunderstorms after midnight. Waves
building to 1 to 3 feet.
$$